What is the recommended depth for chest compressions during CPR?

The recommended depth for chest compressions during CPR is 2 inches. This depth is established based on research that indicates it provides an effective balance between allowing for adequate blood flow during compressions and avoiding potential injury to the patient.

Compressions of this depth maximize the chances of perfusion to vital organs while ensuring that the chest can fully recoil between compressions, which is crucial for improving blood flow during CPR. The guideline emphasizes that compressions should be delivered at a rate of 100 to 120 compressions per minute and should allow for complete chest recoil, which helps to enhance the effectiveness of cardiac compressions.

Deeper compressions, such as the options of 3 inches or 4 inches, can lead to increased risks of injury to the ribs, sternum, or internal organs, therefore 2 inches strikes an important compromise between efficacy and safety. Conversely, shallow compressions, such as 1 inch, may not adequately create the necessary intrathoracic pressure to promote blood circulation during cardiac arrest.